Biochemistry

The cellular cause of birth defects like cleft palates, missing teeth and problems with fingers and toes has been a tricky puzzle for scientists.  

Researchers at UT Southwestern Medical Center have uncovered how the body's inflammatory response can alter how estrogen promotes the growth of breast cancer cells.  

Gold Coast research has made a giant leap forward in understanding one of the most common causes of respiratory infections worldwide.  

Learn to list the biological functions of fatty acids and understand their structure and melting point.  

The primary function of enzymes is to enhance rates of reactions so that they are compatible with the needs of the organism. To understand how enzymes function, we need a kinetic description of their activity. For many enzymes, the rate of catalysis V0, which is defined as the number of moles of product formed per second, varies with the substrate concentration [S] in a manner shown in Figure 8.11. The rate of catalysis rises linearly as substrate concentration increases and then begins to level off and approach a maximum at higher substrate concentrations. Before we can accurately interpret this graph, we need to understand how it is generated. Consider an enzyme that catalyzes the S to P by the following pathway: Figure 8.11Michaelis-Menten KineticsA plot of the reaction velocity (V0) as a function of the substrate concentration [S] for an enzyme that obeys Michaelis-Menten kinetics shows that the maximal velocity (Vmax) is approached asymptotically. The Michaelis constant (KM) is the substrate concentration yielding a velocity of Vmax/2.  

Just found this somewhere in on the net. Worth a look.  

 

The various key features of the citric acid cycle, otherwise known as the Kreb's cycle.  

Adenosine Triphosphate (ATP) is a really important short-term energy storage compound in cells.  

This page will be updated as new tests become available and outmoded ones are removed.  It should not be regarded as exhaustive or static.  

The Cori Cycle is responsible for removing excess Lactic acid or Lactate from the muscle. It is then uptaken by the Liver where it is converted back into Pyruvate, then into Glucose again. This video explains how!  

 

Skill comes with practice! Prepare yourself with Lecturio’s free USMLE Qbank. Go for it and start practicing with over 400 USMLE questions and hundreds of lectures.  

Which patients with lung cancer will respond to anti-PD-1/PD-L1 therapies?  

Quick board reviewabout the anti-hyperlipidemic agents: HMG-CoA Reductase Inhibitors, Niacin, Fibrates, Bile Acid Sequestrants and Cjolesterol Absorption Inhibitors  

Building upon the first video: https://www.youtube.com/watch?v=bDqS3hveTNk Here you get to learn about the chemical classification & characteristics of amino...